19 results
Extraocular Muscle Actions & Clinical Testing
What about clinical testing of extraocular muscle function & associated nerve
Adduction (~51°) ... produced by the lateral ... ptosis, mydriasis, eye ... inability to abduct eye ... diagnosis #testing #ophthalmology
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
Anterior Chamber/Uvea/Iris ... UVEA: comprised Iris ... Unilateral or bilateral ... symptoms + duration ... differential #diagnosis #ophthalmology
Causes of Anterior Uveitis - Differential Diagnosis
Anterior Uveitis - 90% of cases of Uveitis
 • Inflammation
middle layer of the eye ... • Anterior-iris ... Sarcoid, JIA Bilateral ... Idiopathic: Unilateral/bilateral ... Diagnosis #Causes #ophthalmology
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Anatomical Approach to Eye ... Iris 7. ... Trauma Cornea/Iris ... Optic Chiasm Lateral ... differential #diagnosis #ophthalmology
WEBINO on Ocular Examination

WEBINO = Wall-eyed bilateral internuclear ophthalmoplegia with Midbrain exotropia,  b/l ADduction impairment,
WEBINO = Wall-eyed ... bilateral internuclear ... exotropia, b/l ADduction ... impairment, ABducting eye ... #physicalexam #ophthalmology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
of the cell -> Bilateral ... Retinoblastoma Signs / Symptoms ... detachment • Red Eye ... pathophysiology #ophthalmology ... diagnosis #signs #symptoms
Bilateral Internuclear Ophthalmoplegia (BINO)

Bilateral Internuclear ophthalmoplegia in chronic Multiple sclerosis. Note the adduction lag in the
Bilateral Internuclear ... Note the adduction ... the adducting eyes ... Abducting eye nystagmus ... video #neurology #ophthalmology
Thyroid Eye Signs 
Lid Signs
    Dalrymple’s Sign: Lid Retraction.
    Von
Thyroid Eye Signs ... Sign: Loss of the lateral ... Limitation of abduction ... Poor fixation on abduction ... ENDOCRINOLOGY #OPHTHALMOLOGY
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
loss in the left eye ... noted in the left eye ... shows only abduction ... Three weeks later ... clinical #video #ophthalmology
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
present with a red eye ... lights are a key symptom ... Occurs in small eyes ... gradient bows iris ... pathophysiology #ophthalmology